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  1. A

    LED bulbs flickering with time lag switch

    I live in a condominium with a staircase lit by 9 LED bulbs of 10-11 w each. The bulbs are controlled by a time lag switch produced by Hager Electro, with 3-wire connection. Several months ago the lights started flickering, or even fading for several seconds and then going up again, in the timer...
  2. M

    Time Switch Advice

    Hi there We live in a block of flats built sometime in the 60s, which is all electric and has a storage heater in the living room. As to be expected, our electricity bills are a lot higher than properties we've lived in previously which had gas central heating. The day, night and heat rates...
  3. S

    TIme Delay Switch

    Hello, I have a 12VDC battery bus where I charge with solar PV and a wind turbine. The system is controlled using a Siemens PLC. When there is a system fault, the PLC will open all relays, but this included relays that power the PLC itself (example an emergency pushbutton). When restarting the...
  4. T

    multiple circuits stopped getting power same time, replaced all, still no power??

    video explaining/showing problem View: https://youtu.be/VjtsPzzZYrQ this is a eaton cutler hammer circuit breaker. The house was built in 1969 but the breaker was upgraded to this eaton 9 years ago when i bought it. House uses mostly older outlets that are 2 prong, not 3 prong. HOuse does...
  5. Vortigern

    SWA supply cables between buildings will not disconnect in required time

    Doing calcs on swa supply to building as sub main from main three phase squard D board for single phase supply off of TN-S supply. I used cable mate from jarsoft and looked up various tables for disconnection times. In all case scenarios it tells me it will not disconnect within the required...
  6. dlt27

    Time delayed rcd’s and fault protection

    Have been to a farm today that has a 100mA time delayed RCD main switch covering a DB that has MCB’s on majority of circuits ( less than 32A) and 30mA RCBO’s on sockets, lighting etc. What I was thinking was does this comply with regs as circuits less than 32A should disconnect in less than...
  7. C

    RCD trip time

    What are the required RCD trip time requirements? And what do you typically see in the real world?
  8. O

    ADE optima Compact G3 set entry/exit time on multiple zones

    Hello I’ve recently had to rewire my home alarm system as the engineer who installed it did such a shoddy job that all the cables were hardly in and causing the system to trigger every couple of moments. I’ve recently been able to get the system working correctly however, I am unable to set...
  9. I

    Who should pay for my time?

    I was recently called back to a new house I had just completed by the customer regarding an intermittent fault. It took a while to diagnose that a small water leak from the boiler flow pipe was gathering in the Honeywell valve and knocking out the RCBO when calling for Hot Water. Having...
  10. T

    1st fix time for timber frame

    Evening all Have many of you worked with timber frame buildings? Im pricing 9 houses which are all timber frame and have easy joist so no drilling of joists All houses are 4 bedroom with TV and DATA points in each room, downlights downstairs and a garage with a light and socket How long would...
  11. Mike Johnson

    Time for a new R2 lead

    It's time for a new Wander lead, fed up with the reel falling over as soon as you pull a bit on the lead, I am leaning towards one of the box type, do any of you chaps have a suggested best buy? also do the box type reel out easily enough to just put them on the ground and pull the lead, I know...
  12. Pete999

    Eddie Jones should stay ENGLAND HEAD COACH What do you reckon? me yes every time done a wonderful job

    Keep Eddie in charge if he still wants it,
  13. A

    2396 is it a waste of time

    Afternoon all I have been doing some research over that past few days and frustratingly the JIB will only grade me as a Labourer! I have:- C&G 2360 Part 1 C&G 2360 Part 2 (minus science) C&G Level 3 BS7671 18th edition C&G NVQ Level 2 Installing Electrotechnical Systems C&G 2392 Level 2...
  14. S

    Salus, running boiler most of the time.

    I have a salus RT501RF (TX) and the thermostat is Salus RXBC605. The boiler is a baxi duo tec 24 combi erp ( what the label says). I have reset the boiler, thermo and wireless unit, synced them back up due to the same issue but it did not fix it. The problem is the boiler is running all the...
  15. H

    Boiler comes on after time clock has been removed from wall

    Hi just looking peoples thoughts on this one. I went to check out a 3 channel hortsmann time clock. I found it to be faulty as the display came and went. It’s about 12 years old and apparently when the internal battery fails it time to change the clock as you can’t access the battery. Anyway, I...
  16. C

    Time Delay/Lag Switch Issue

    Hello all! I work in maintenance and one of the properties I maintain has a issue with the timer switches in the corridor. They don’t turn off when you press any other switch other than the master switch and it seems to function normally. However I did notice that when you press a two of the...
  17. buzzlightyear

    so it is this time of year

    me on my jollies ,lol and dont wait up.and its not Thomas corker holiday neither sail back on a barge boat.
  18. G

    Regulation 434.5.2 - Time a conductor can withstand fault current

    Can anyone help me clarify the formula in regulation 434.5.2, the time a conductor can withstand a fault current without sustaining damage. t=k2 x S2 / I2 The regulation states I is the effective fault current. Does effective fault current mean the prospective short circuit current/...
  19. Dan

    OFTEC Self-Certification As an electrician, do you feel you have enough independent competition between certification companies when it comes to renewal time?

    As an electrician, do you feel you have enough independent competition between certification companies when it comes to renewal time? (Poll total results are publicly visible - but NOT the actual individual votes - those are private and cannot be accessed via the forum software once the vote is...
  20. J

    Mechanical Engineer and part time electrical installation course

    Hi All, Thanks for your time in advance. I'm currently working as a mechanical engineer, in which I did an apprenticeship years ago and achieved NVQ Level 3 (ONC). I'm not looking to change careers but would like to attend evening college classes in order to gain qualifications (possibly to...

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